Window fan



FIG. 1 is a top front perspective view of a window fan.

FIG. 2 is a rear bottom perspective view of the window fan of FIG. 1 .

FIG. 3 is a front elevation view of the window fan of FIG. 1 .

FIG. 4 is a rear elevation view of the window fan of FIG. 1 .

FIG. 5 is a top plan view of the window fan of FIG. 1 .

FIG. 6 is a bottom plan view of the window fan of FIG. 1 .

FIG. 7 is a side elevation view of the right side of the window fan of FIG. 1 ; and,

FIG. 8 is a side elevation view of the left side of the window fan of FIG. 1 .

In the drawings, the broken lines depict portions of the window fan that form no part of the claimed design. 

CLAIM We claim the ornamental design for a window fan, as shown and described. 